when you and another person bump your fists together in greeting or celebration (refers to the name of the bones in your hand that collide when the act is performed)

They're technically your finger bones. Also mentioned in friends, as phoebe calls herself Regina Phalange and claims to rachel there is something wrong with her plane to paris's left phalange.

Also, an awesome handshake in which you and another person put your hands out, wiggle them, and say "phalanges"! it's something much cooler than a high five, but given for the same reasons.

n. a "high five", i.e. slapping hands in celebration. From the literal meaning of the word - the bones of the fingers.

the anatomical description of the the frigers or toes. used by doctors and phobebe in friends as a character name.